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CVE-2025-27439

27
FAUCET Score

CVE-2025-27439 is a buffer underflow vulnerability affecting various Zoom Workplace applications, including Zoom Meeting SDK, Zoom Rooms, and Zoom Workplace Desktop. This vulnerability carries a high CVSS score of 8.8, indicating that an authenticated user can achieve escalation of privilege over the network with low attack complexity, leading to high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.3.0CPE matchmatch criteria
cpe:2.3:a:zoom:meeting_software_development_kit:*:*:*:*:*:android:*:*
< 6.3.0CPE matchmatch criteria
cpe:2.3:a:zoom:meeting_software_development_kit:*:*:*:*:*:iphone_os:*:*
< 6.3.0CPE matchmatch criteria
cpe:2.3:a:zoom:meeting_software_development_kit:*:*:*:*:*:linux:*:*
< 6.3.0CPE matchmatch criteria
cpe:2.3:a:zoom:meeting_software_development_kit:*:*:*:*:*:macos:*:*
< 6.3.0CPE matchmatch criteria
cpe:2.3:a:zoom:meeting_software_development_kit:*:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

8.5HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 23rd percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

zoom.com / en/trust/security-bulletin/zsb-25011
Vendor Advisory